In an age when artificial intelligence has become integral to human life, AI songstress Vivy captures people’s hearts with her enthralling voice at a theme park, NiaLand. When a mysterious AI who calls himself Matsumoto appears and claims to be from one hundred years in the future, he warns Vivy of the coming apocalyptic battle between AI and humankind. Can Vivy help prevent an all-out war one hundred years hence, and save humanity from destruction?